#include <js_native_api.h>
#include "common.h"
#include "../entry_point.h"

static napi_value Add(napi_env env, napi_callback_info info)
{
    size_t argc = 2;
    napi_value args[2];
    NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));

    NODE_API_ASSERT(env, argc >= 2, "Wrong number of arguments");

    napi_valuetype valuetype0;
    NODE_API_CALL(env, napi_typeof(env, args[0], &valuetype0));

    napi_valuetype valuetype1;
    NODE_API_CALL(env, napi_typeof(env, args[1], &valuetype1));

    NODE_API_ASSERT(env, valuetype0 == napi_number && valuetype1 == napi_number,
        "Wrong argument type. Numbers expected.");

    double value0;
    NODE_API_CALL(env, napi_get_value_double(env, args[0], &value0));

    double value1;
    NODE_API_CALL(env, napi_get_value_double(env, args[1], &value1));

    napi_value sum;
    NODE_API_CALL(env, napi_create_double(env, value0 + value1, &sum));

    return sum;
}

EXTERN_C_START
napi_value Init(napi_env env, napi_value exports)
{
    napi_property_descriptor desc = DECLARE_NODE_API_PROPERTY("add", Add);
    NODE_API_CALL(env, napi_define_properties(env, exports, 1, &desc));
    return exports;
}
EXTERN_C_END
